发明名称 |
Particle injection device for thermal spraying |
摘要 |
There is described a method and an apparatus wherein particles and a carrier gas are injected under pressure into a plasma flame. The particles are completely melted and are theraefter propelled onto a substrate to produce a coating thereon. According to the invention, the speed of the particles is slowed down and the flow of the gas carrier is adjusted, such as by disposing a cyclone ahead of the plasma flame, so as to provide an efficient injection of the particles in the center of the plasma flame.
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申请公布号 |
US4901921(A) |
申请公布日期 |
1990.02.20 |
申请号 |
US19890314231 |
申请日期 |
1989.02.21 |
申请人 |
CANADIAN PATENTS AND DEVELOPMENT LIMITED |
发明人 |
DALLAIRE, SERGE;SPINO, DENIS;CHAMPAGNE, BLAISE |
分类号 |
B05B7/22;H05H1/42 |
主分类号 |
B05B7/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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